International Journal of Computer Network and Information Security (IJCNIS)
IJCNIS Vol. 5, No. 1, 8 Jan. 2013
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Performance Evaluation of Security-Throughput Tradeoff with Channel Adaptive Encryption
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Author(s)
Poonam Jindal
1,*
Brahmjit Singh
1
Index Terms
AES, Avalanche Effect, Encryption, Wireless Security, Modes of Ciphers, WLAN
Abstract
With the ever increasing volume of information over wireless medium, security has assumed an important dimension. The security of transmitted data over a wireless channel aims at protecting the data from unauthorized intrusion. Wireless network security is achieved using cryptographic primitives. Some properties that give encryption mechanism their cryptographic strength also make them very sensitive to channel error as well. Therefore, security for data transmission over wireless channel results in throughput loss. Tradeoff between security and throughput is always a major concern in wireless networks. In this paper, a Link Adaptive Encryption scheme is evaluated that adapts to channel variations and enhances the security level of WLANs without making any compromise with the network performance. Numerical results obtained through simulation for link adaptive encryption scheme are compared with the fixed block length encryption technique operating in Cipher Block Chaining (CBC) mode of operation. Optimal block length is also computed, which is assumed to be the effective strength of the cipher. It has been observed that security attained with link adaptive scheme operating in CBC mode is a better solution for security and throughput tradeoff.
Cite This Paper
Poonam Jindal, Brahmjit Singh, "Performance Evaluation of Security-Throughput Tradeoff with Channel Adaptive Encryption", International Journal of Computer Network and Information Security(IJCNIS), vol.5, no.1, pp.49-55, 2013. DOI:10.5815/ijcnis.2013.01.06
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